90817375 has 24 divisors (see below), whose sum is σ = 124126704. Its totient is φ = 65792000.

The previous prime is 90817367. The next prime is 90817379. The reversal of 90817375 is 57371809.

It is not a de Polignac number, because 90817375 - 2³ = 90817367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90817379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353247 + ... + 353503.

It is an arithmetic number, because the mean of its divisors is an integer number (5171946).

Almost surely, 2^90817375 is an apocalyptic number.

90817375 is a deficient number, since it is larger than the sum of its proper divisors (33309329).

90817375 is an equidigital number, since it uses as much as digits as its factorization.

90817375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 90817375 is about 9529.8150559179. The cubic root of 90817375 is about 449.4930505074.

The spelling of 90817375 in words is "ninety million, eight hundred seventeen thousand, three hundred seventy-five".